Combination-lock



(No Model.)

- T. B. ZELLER.

COMBINATION LOOK. No. 366,806. Patented July 19, 1887.

21 mumm IL PETERS, Pnnto-Lilhn n hur. wnh gion. D. c.

PATENT OFFICE.

THOMAS B. ZELLER, OF KOSSUTH,

ASSIGNOR OF ONE-HALF TO F. S.

BOWMAN, on TYLERSBURG, PENNSYLVANIA.

COMBINATION-LOCK.

SPECIFICATION forming part of Letters Patent No. 366,806, dated July 19, 1887.

Application filed March 12, 1887. Serial No. 130,678. (No model.)

To all whom, it may concern.-

Be it known that. I, Tnonas B. ZELLER, a citizen of the United States, residing at Kossuth, in the county of Clarion and State of Pennsylvania, have invented a new and useful Improvement in Combination-Locks, of which the following is a specification.

My invention relates to improvements in con'ibinationlocks, with a View to making a simpler and cheaper form thereof adapted for use in connection with padlocks, post-office boxes, cupboards, drawers, &c., in addition to the ordinary situations in which such locks are used.

My invention consists, further, in certain details of construction, hereinafter more fully described, pointed outin the cl aims,and clearly illustrated in the accompanying drawings, in which- 1 Figure 1 is a perspective view of the lock. Fig. 2 is a rear elevation of same. Fig. 3 is a similar view with the rear plate removed. Fig. 4 is a central longitudinal section on the line a: at of Fig. 2. Fig. 5 is a rearview with the device locked.

Referring to the drawings by letter, A designates the body of the lock, having front plate,

B, and rear plate, Gyand D is the sliding bolt of the lock, having a round opening or bearing, (7, near the front end, and a slot, d, in the rear end.

E is a knob having a circular flange, F, to

.rest on the face of the lock-plate, and G is a spindle or post rigid with the said knob and passing through the slot b in the front plate, the circular opening or bearing d in the bolt D, and projecting a short distance beyond the same.

E is a knob similar to E, having a flange,

F s indle G ri id with said knob and )ass- 7 p 7 6 bler to turn together.

cured in the said bolt and the tumblers II) backward in the slot 1) by means of the knob E.

1" represents a slight shoulder on the said spindle G, slightly above the inner surface of the bolt D,which shoulder is adapted to serve as a stop,against which the tumbler II is bound by the set-screw K, inserted in the end of the said spindle to cause the said spindle and tum- I is asimilar shoulder on the spindle G, adapted to serve as a stop for the tumbler H, which is bound firmly in position by means of the set-screw K in the end of the said spindle G. M are washers under the heads of the sct-screws. It will be seen that the said set-screws maybe very readily loosened to turn the tumbler on the spindle and then tightened again to bind itfirmly thereto.

Thereis a series of numbers or letters around the flange of each of the knobs, and an indicator or mark on said flange to point to a certain letter,and when the proper combinationletters are indicated by the said marks or indicators, the tongues and recesses on the tumblers will align properly and allow the bolt to be drawn back. A small circular opening, P, is made in the rear plate over or in line with the spindle G to enable the set-screw to be operated to change the combination, and a similar opening, 1 is formed around the spindle G for a similar purpose.

It will be noticed that a great number of combinations can be made with the improved lock, and the said combinations can be very easily made by simplyloosening the set-screws and turning the spindle in the tumbler until the indicator on the knob points to the desired letter or number on the disk, and the said combination may be changed at any time that the door is opened, since the means of setting the combination is exposed at such times.

The construction of the lock (namely, with two tu mblers, one being seen red to and movable with the bolt and the other being stationary) is very simple, and yet much more ditlicult to unlock than when only a single tumbler is provided, and, further, a greater numberof combinations may be thereby made.

The construction of my device being so simple and so compact in form adapts it especially for use in padlocks and similar situations where claimthe space occupied'is an item of consideration, and the evident cheapness of manufacturing the lock should commend it to the notice of the public and cause it to be generally used in many situations-such as drawers, cupboards, &c. -where the ordinary key-locks are llOW used. as it is obviously more convenient to remember a combination than to carry a key of one of the said locks, and in the former case there is no danger of rendering the lock useless by losing the said key.

Having thus described my invention, I

3. A combination-lock having the sliding bolt D, combined with the stationary tumbler H, adapted to be'rotated by the knob'E and having the recesses I I in one side, and the tumbler H, journaled in and movable with the said bolt and adapted to be rotated by the handleE, said tumbler having the tongues I I to fit in the recesses I I, and adapted,when aligned with said recesses, to allow the said bolt D to be drawn back, substantially as described.

4. A combination-lock having the sliding bolt D, combined with the stationary tumbler H, having the knob E and the tumbler H journaled to the said bolt, and having the handle E, the said tumblers H H being adapted to be independently adjusted on their respective spindles to form the desired combination,

substantially as and for the purpose specified;

In testimonythat I claim the foregoing as my own I have hereto affixed my signature in presence of two witnesses.

THOMAS B. ZELLER. 

